diff --git a/nix/sources.json b/nix/sources.json
index fe518b0..7013836 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -60,10 +60,10 @@
         "homepage": "https://github.com/NixOS/nixpkgs",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "09650059d7f5ae59a7f0fb2dd3bfc6d2042a74de",
-        "sha256": "0f06zcc8mh934fya0hwzklmga238yxiyfp183y48vyzkdsg7xgn0",
+        "rev": "4f37689c8a219a9d756c5ff38525ad09349f422f",
+        "sha256": "1w8d2q2n0s8b3wjwvysrxcx3yr3dyna8144p64490a77r61d17y2",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/09650059d7f5ae59a7f0fb2dd3bfc6d2042a74de.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/4f37689c8a219a9d756c5ff38525ad09349f422f.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgsUnstable": {